Infrared electronic absorption in a single-component molecular metal.
Infrared electronic absorption in a single-component molecular metal.
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DOI：
10.1021/ja0379767
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发表时间：
2004-01
影响因子：
15
通讯作者：
A. Kobayashi;M. Sasa;W. Suzuki;E. Fujiwara;Hisashi Tanaka;M. Tokumoto;Y. Okano;H. Fujiwara;
中科院分区：
文献类型：
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作者：
A. Kobayashi;M. Sasa;W. Suzuki;E. Fujiwara;Hisashi Tanaka;M. Tokumoto;Y. Okano;H. Fujiwara;
具有扩展TTF配体的过渡金属络合物分子Ni(Tmdt)2是第一个在低温下仍具有稳定金属状态的单组分分子金属，其晶体的红外光谱在2200 cm-1(tmdt=三亚甲基四硫代富瓦烯二硫酸盐)附近表现出极低的电子吸收。类似于Ni(Tmdt)2的分子的吸收峰从金属晶体到半导体晶体的系统位移表明，单组分分子导体是由具有前所未有的小HOMO-LUMO能隙的分子组成的。
The infrared spectra of the crystal of transition metal complex molecules with extended-TTF ligands, Ni(tmdt)2, which is the first single-component molecular metal that has a stable metallic state even at low temperatures, exhibited an extremely low-energy electronic absorption around 2200 cm-1 (tmdt = trimethylenetetrathiafulvalenedithiolate). The systematic shift of the absorption peaks for molecules similar to Ni(tmdt)2, which range from metallic to semiconducting crystals, shows that the single-component molecular conductors are composed of molecules with unprecedentedly small HOMO-LUMO gaps.